Reaction was born in 2012 by the union of three musicians who had already collaborated in the past: Marco "Viper" Vicari (Vocals and Guitars), Enrico "Terry" Rusconi ( Bass ) and Jvan "JT" Tagliabue (Drums and Percussions).
- Since 2012 Reaction has performed in many shows, contests, festivals and biker fest in the north of Italy.
- In 2013 Reaction produced the first full lenght "Kill the parasite"
- Since 23th December 2014 "Kill the parasite" has been available on every digital stores (iTunes, Amazon, Spotify, GooglePlay), through the collaboration with "Cd baby".
- Since March 2014 "Kill the parasite" has been available in CD format.
- In October 2014 Reaction starts a collaboration with "Globmetal promotion" , which is involved to spread "Kill the parasite" in Europe, U.S.A. and Russia through on line radios, and webzines.
- Since November 2014 Reaction gives many interviews for webzines and receives as many reviews about "Kill the parasite".
- In December 2014 Reaction gets the first place at the top ten of a Russian On line radio.
- In January 2015 Reaction receives the proposal by the "Storm stage agency" to make a tour in Russia, scheduled to be in September - October 2015.
- Unfortunately, the Russian tour was interrupted, 'cause of economic problems on the part of the booking agency.
- In September 2015 Reaction signs a contract with Vincent Arcaro and HMP, which will show itself like a cheat.
- In September 2015 Reaction has collaborated with Ermanno Campalani and Antonio Di Canito, in order to record Kill the parasite' s videoclip:

https://www.youtube.com/watch?v=tvypZ5iOzBA

- Between 2015 and 2016 Reaction has riden the stages, even as support to some international artists like Adam Bomb and Eric Forrest.
- In June 2016 Reaction starts a collaboration with Red Mist booking agency.

At the moment Reaction is working hard on the second full lenght, which could be released at the beginning of the next year.